Side-lever pedal-gear for cycles.



PATENTED OCT. 2, 1906.

J. H. MOFARLANE.

SIDE LEVER PEDAL GEAR EUR CYCLES.

APPLIOATION FILED MAR.15, 1905.

o., wAsHmaraN. D, c.

UNITED STATES PATENT OFFICE.

JAMES HUSBAND MCFARLANE, OF EAST DEVONPORT, TASMANIA,

' AUSTRALIA.

Specication of Letters Patent.

Patented Oct. 2, 1906.

Application led March 15, 1905. Serial No. 250,275.

To a/ZZ whom t may concer-n:

Be it known that I, JAMES HUSBAND Mc- FARLANE, architect, a subject ofthe King of Great Britain and Ireland, residing at East Devonport, inthe British State of Tasmania, Commonwealth of Australia, have inventeda new and useful Im roved Side-Lever Pedal- Gear for Cycles, o which thefollowing is a specification.

This invention consists of improved sidelever pedal-gear for cycles inwhich the hinged end of each side lever is carried by a spring-post andthe link connection 'between the crank and side lever is furnished witha buffer or ta pet which at certain positions of the revolution of thecrank bear on the pedal-lever and assist in carrying the crank over itsdead-centers.

The invention will now be described, aided by a reference to theaccompanying sheet of drawings, in which it is illustrated inA Figure lby a side view, and in Fig. 2 by a plan, while Fig. 3 is a detail viewtaken on line a a, Fig. l, and Fig. 4 a detail side view of a modifiedspring-post.

Each side pedaldever A is centered and supported at its fore end on theupper part of a spring-post A, the lower end of each springpost beingcarried on a hinge-pin b in a lug b, one ateach end of a transverse barB, which is secured at its center to the lower end of a downwardextension B of the dia onal bar B2 of the diamond-frame, and saiddownward extension is further stayed by a curved front bar C. Saidspring-buffer A bears against either a flat or a coiled spring bufferA2, arranged between it and the said lug or carrier b, a flat springbeing shown in Figs. l and 3 and a coiled spring in Fig. 4.

The top part of each lever A has a holed lug a on it at a point about afourth of its length from its fore end for connection by a link D withthe end of a crank D secured on the sprocket-wheel Spindle E, therebeing a crank D at each end of said spindle E, and said sprocket-wheel Eis geared, as usual, by a chain belt E2 with apinion on the back ordrivingwheel spindle. Secured to the back of each link connectionbetween the crank D and pedal-lever A is a rubber buffer or tappetpieceF, the rubber being carried on a circular support F, secured to thelink, the purpose of said buffer being to enable the stroke of thepedal-lever to be exerted on the link D to assist in carrying the cranksover their deadcenters.

The back free end of each side or pedal lever A is forked, and saidforked partis furnished with a pedal-piece a2, which is provided with anadjustable leather toe-socket a3.

By the rider working the pedal-levers A up and down a rotary motion isimparted to the cranks D through the medium of the connecting-links D,while the buffers F retain the links D at a proper angle to carry thecranks over their dead-centers.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a side-lever pedal-gear cycle, the combination with the crank, apedal-lever, means for movably connecting the pedal-lever to the crank,and a buffer or tappet-piece disposed between the pedal-lever and saidmeans and adapted to engage the lever.

2. In a side-lever pedal-gear cycle, the combination of the crank, apedal-lever, a link connecting the pedal-lever and crank, and a bufferor tappet-piece carried by the link and adapted to engage thepedal-lever.

3. In a side-lever pedal-gear cycle, the combination of side levers A,posts A, springs A2 engaging the posts, pedal-levers movably attached tothe posts, cranks, links D movably connecting the cranks andpedallevers, and buffers F connected to the links and adapted to engagethe pedal-levers.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

JAMES HUSBAND MOFARLANE.

